Explore Scientific FirstLight 152mm f/5 Achromatic GoTo Refractor with EXO2GT Mount

Explore Scientific FirstLight 152mm f/5 Achromatic GoTo Refractor with EXO2GT Mount

Explore Scientific FirstLight 152mm f/5 Achromatic GoTo Refractor with EXO2GT Mount

B&H # EXFLAR152RT MFR # FL-AR152760EXOS2GT
Special Order
Expected availability: 7-14 business days

Product Highlights

  • 152mm Achromatic Refractor OTA
  • 760mm Focal Length, f/5 Focal Ratio
  • Fully Multi-Coated Optics
  • 2.5" Hexagonal Focuser with Reducers
  • 1.25" 25mm Eyepiece, 2" 90° Diagonal
  • FL-EXO2GT Motorized EQ Mount
  • StarTracker Hand Controller
  • 273,000-Object Database
  • Multiple Alignment Tools and Tracking
  • 2" Stainless Steel Tripod with Tray
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Mount Options: Motorized GoTo

Manual Alt-Az

Not available with current selections

Manual German Equatorial

Not available with current selections

Motorized GoTo

Aperture: 152mm f/5

102mm f/10

Not available with current selections

127mm f/9

Not available with current selections

127mm f/9.4

More on the Way

152mm f/5 70mm f/10

Not available with current selections

80mm f/11

Not available with current selections

80mm f/8

Not available with current selections

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You Pay: $1,049.95

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  • 1Description

Explore Scientific put their FirstLight 152mm f/5 Achromatic GoTo Refractor with a sturdy motorized GoTo mount, tripod, and observing accessories to provide users with a complete observational package ideal for exploring the Moon and planets within our solar system. The refractor-style optical tube has an over-sized 152mm (6") aperture configured with an achromatic lens system to correct chromatic and spherical aberration which translates to crisp and clear images with true color rendition with little distortion at the edges. Complementing this optical configuration, are fully multi-coated optics that increase light transmission to increase details of objects within the solar system. Its fast focal ratio, large aperture, GoTo-capable mount with automatic tracking, and sturdy hexagonal focuser make this rig ideally suited for imaging the moon, planets, and Sun (with proper filters).

The SkyTracker kit includes the hand controller unit, and right ascension and declination motors. Its hand controller has a database of more than 272,000 objects with the ability for users to input custom coordinates and favorites. With a slew speed of 2°/second and nine tracking speeds the SkyTracker can accurately keep near and deep sky objects such as the Moon, planets, galaxies, and nebulae centered in your eyepiece for long exposure imaging and astrophotography or prolonged observation sessions.

The tripod is built with large 2" diameter stainless steel legs and tight tolerances to reduce vibration for clearer viewing. A center stabilizer bar pulls the accessory tray up to lock the legs in place adding further rigidity and vibration reduction. It is adjustable from 26.8 to 42.5" to accommodate a wide range of users and features large thumbscrews for tool-free adjustment in the field. An adjustable tray is also included with the tripod to keep eyepieces, flashlights, and other accessories safe and at the ready. Rounding out the included accessories is a 25mm eyepiece, a 90° star diagonal for comfortable viewing, a universal smartphone holder for capturing images through the eyepiece, and an unmagnified red-dot finder.

Optical Tube
  • 152mm aperture
  • Fast f/5 focal ratio
  • 760mm focal length
  • Achromatic refractor optical design
  • Fully multicoated optics improve light transmission, color, and contrast
  • Achromatic lens configuration reduces spherical and chromatic aberration for true color rendition with edge-to-edge clarity
  • 2-speed 2.5" diameter hexagonal focuser with 2" eyepiece/accessory holder; 10-pound (4.5kg) payload capacity to handle heavier imaging systems without flexing or bending
StarTracker GoTo System
  • Dual axis DC servo motors with digital encoders
  • Database includes over 272,000 astronomical objects
  • Add user-defined objects and favorites
  • Controls dual axis motors for precision tracking
  • Slewing speed: 2° per second, maximum
  • Nine tracking rates for near and deep-sky objects
  • 2.5x1.4" (6.3x3.6cm) LCD screen, eight-rows with 21 digits per row
Mount
  • 28-pound payload capacity
  • Cast aluminum with white powder-coat
  • Ball bearings on both axes reduce vibrations and minimize backlash
  • Two 11-pound counterweights, 20mm diameter bar
  • Latitude, Right Ascension, and Declination scales
  • Right ascension axis release lever allows for fast manual adjustment
  • Illuminated polar finder scope to increase alignment precision
  • Integrated bubble level on mount base
  • Runs on eight user-supplied D-cell batteries
Tripod
  • Three-section adjustable-height
  • 2" stainless steel legs
  • 26.8 to 42.5" height adjustment range
  • Center stabilizer bar locks legs in place to reduce vibrations
  • Accessory tray with holes for 1.25" eyepieces
  • Spiked feet for use in ground and grass for increased stability, especially on rough or uneven area
Included Accessories
  • 1.25" 25mm Plössl eyepiece yields 30x magnification
  • 2" 90° star diagonal places head in comfortable position, especially when OTA is aimed at or near the zenith
  • 2" and 1.25" reducer adapters for focuser and diagonal
  • Smartphone adapter attaches over most 1.25" eyepieces and allows any smartphone to be used for astrophotography
  • Red-dot finder: Unmagnified for fast subject acquisition with variable red illumination to protect night-adjusted vision
  • Astronomy computer software for Windows
UPC: 812257018260
In the Box
Explore Scientific FirstLight 152mm f/5 Achromatic GoTo Refractor with EXO2GT Mount
  • EXOS-2GT Motorized Equatorial GoTo Mount with Tripod (White)
  • Smart Phone Camera Adapter for 1.25" Eyepieces
  • 2" 90° Diagonal
  • 1.25" 25mm Eyepiece
  • 2" Reducer Adapter
  • 1.25" Reducer Adapter
  • Red-Dot Finder
  • 2 x 11 lb Counterweights with Bar
  • Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration within 60 Days
  • Table of Contents
    • 1Description
    Optical Tube Assembly
    Optical Design Achromatic refractor
    Aperture 152mm
    Focal Length 760mm
    Focal Ratio f/5
    Eyepiece Barrel Diameter 2", or 1.25" with included adapter
    Diagonal 90° star diagonal
    2" diameter snout and eyepiece holder
    Finderscope Red-dot finder
    Mount Type Motorized equatorial
    Optical Tube Dimensions Not specified by manufacturer
    Weight Not specified by manufacturer
    Mount
    Mount Type German equatorial
    Load Capacity 28.0 lb / 12.7 kg
    Motor Dual axis motors
    GO-TO Capability StarTracker GoTo system
    Polar Axis Scope Optional
    Includes Tripod/Pier Steel adjustable-height tripod
    2.0" / 5.1 cm diameter legs
    Height, Min: 26.8" / 68.1 cm
    Height, Max: 42.5" / 108.0 cm
    Counterweight 2 x 11.0 lb / 5.0 kg
    Power Source 8 x D-cell batteries
    Weight Mount Head: 11.0 lb / 5.0 kg
    Tripod: 10.8 lb / 4.9 kg
    Total: 33.1 lb / 15.0 kg
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